Improvement in cutter-heads



F. KREIN. Gutter-Head.

Ptented Dec. 9, 1879.

TI G12.

FIG-.1.

ATTESTI PETERS, PHOTO-LIT HOGBAFHER. WASHINGTON. n C.

UNITED STATES PATENT OFFICE.

FRANZ KREIN, OF ST. LOUIS, MISSOURI.

lM PROVEMENT lN CUTTER-HEADS.

Specification forming 'part of Letters Patent No. 222,510, dated December 9, 1879 application filed October 23, 1879.

had to the accompanying drawings, forming part of this specification.

This improvement consists in forming, just in advance of each knife, a rounded groove,

- which allows the escape of the shavings, and whose anterior edge, by proximity to the face vof the hame, prevents the wood tearing into slivers in advance of the knife. The main body of the cutter-head. is divided into three parts by two parallel cuts, and the side parts are secured to the central part by radial screws.

The whole is covered by a cap having a downturned marginal flange, which takes over the upper corner of the body of the cutter-head and aids to hold all the parts compactly together. It is held in place by a washer and a nut on the top of the shaft.

In the drawings, Figure l is a view half in elevation and half in axial section. Fig. 2 is a side view of Fig. 1. Fig. 3 is a plan with the top removed.

The cutter-head is sustained'upon the shaft A of a hame-dressing machine (or other machine, as the case may be,) and consists of three parts, B O D. The side parts, 0 and D, are secured to the central part, B, by radial screws E. The knives or cutters Frest in recesses or grooves in the flat side of the parts 0 and D; The recesses G allow the escape of the shavings, and their anterior edge, by proximity to the face of the hame being worked ofi, prevents shavings tearing into the wood ahead of the knife.

The knives or cutters F are held in place by the pressure of the side parts, 0 D, against them, and by the pressure of the cap H upon their upper edges.

The cap H has a downturned marginal flange, h, which takes over the upper corner of the body B G D of the cutter-head, and aids to hold the parts together. It is held in position on the shaft A by washer I and nut J, or by other suitable means.

This invention is the same as shown in my application for Letters Patent of the United States filed on or about the 26th day of February,18i'9, for improvement in hame-dressing machines, and is generally intended to be used with such machines; but I do not confine myself to that class of machines alone.

I claim herein as new and of my invention- 1. The cutter-head, composed of three parts, B O D, secured together by radial screws E, and the cap H, having downturned marginal flange h, substantially as set forth.

2. The cutter head F, having rounded grooves f in advance of the cutters, substantially as shown and described.

- FRANZ KREIN.

Witnesses:

J. W. McOLINTocK, SAML. KNIGHT. 

